<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        @keyframes pulse {
            0% {}

            70% {
                width: 40px;
                height: 40px;
            }

            100% {
                width: 60px;
                height: 60px;
                opacity: 0;
            }
        }

        body {
            background-color: black;
        }

        .map {
            width: 747px;
            height: 617px;
            margin: auto;
        }

        .city {
            position: absolute;
            top: 240px;
            right: 500px;
        }

        .city div {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 8px;
            height: 8px;
            transform: translate(-50%, -50%);
            border-radius: 50%;
        }

        .dotted {
            background-color: #08f
        }

        .city div[class^=pulse] {
            box-shadow: 0 0 1px 3px #08f;
            animation: pulse 1.2s linear infinite;

        }

        .pulse2 {
            animation-delay: .4s !important;
        }

        .pulse3 {
            animation-delay: .8s !important;
        }

        .tb {
            top: 510px;
            right: 390px;
        }

        .gz {
            top: 554px;
            right: 505px;
        }
    </style>
</head>

<body>
    <div class="map"><img src="./map.png" alt="">
        <div class="city">
            <div class="dotted"></div>
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
        <div class="city tb">
            <div class="dotted"></div>
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
        <div class="city gz">
            <div class="dotted"></div>
            <div class="pulse1"></div>
            <div class="pulse2"></div>
            <div class="pulse3"></div>
        </div>
    </div>
</body>

</html>